EP 0124437 B1 19871104 - PLASTIC OPTICAL FIBRES AND METHOD FOR THEIR PREPARATION
Title (en)
PLASTIC OPTICAL FIBRES AND METHOD FOR THEIR PREPARATION
Publication
Application
Priority
FR 8307348 A 19830503
Abstract (en)
[origin: US4571313A] Optical fibres of methyl methacrylate-styrene copolymer are produced by forming a sheath in the form of a solid cylinder having at least one cylindrical recess and at least one cylindrical rod constituting the core of the fibres, the rod having a smaller diameter than the recess, introduction of the cylindrical rod into the recess, placing the gap defined between the rod and the cylinder under a vacuum, raising the temperature in order to soften the cylinder and engage it with the rod under the effect of the vacuum and drawing the thus obtained preform.
IPC 1-7
IPC 8 full level
G02B 1/04 (2006.01); B29D 11/00 (2006.01); G02B 6/00 (2006.01)
CPC (source: EP US)
B29D 11/00721 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT SE
DOCDB simple family (publication)
EP 0124437 A1 19841107; EP 0124437 B1 19871104; DE 3467113 D1 19871210; FR 2545616 A1 19841109; FR 2545616 B1 19861024; JP S59210401 A 19841129; US 4571313 A 19860218
DOCDB simple family (application)
EP 84400838 A 19840425; DE 3467113 T 19840425; FR 8307348 A 19830503; JP 8795084 A 19840502; US 60624484 A 19840502